SKU: 15234756755

Sirui HA-77 Horizontal Arm

Sale price$14517.00 Regular price$16130.00
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Description

Sirui HA-77 Horizontal Arm19. 7 to 30. 3" Telescoping Cross Arm Load Capacity: 11 lb Mount Camera Perpendicular to Tripod Use as Miniature Camera Boom Swivel 360, Tilt 90 Up or Down Length and Angle Hash Marks Reversible 1 4" 20 or 3 8" 16 Mount Built In Swivel Head with 3 8 16 Thread Padded Boom Handle, Counterweight Hook Aluminum Alloy Construction The HA 77 Horizontal Arm from Sirui is a telescoping cross arm that can be combined with a tripod or stand to create a miniature

  • 19.7 to 30.3" Telescoping Cross Arm
  • Load Capacity: 11 lb
  • Mount Camera Perpendicular to Tripod
  • Use as Miniature Camera Boom
  • Swivel 360°, Tilt 90° Up or Down
  • Length and Angle Hash Marks
  • Reversible 1/4"-20 or 3/8"-16 Mount
  • Built-In Swivel Head with 3/8-16 Thread
  • Padded Boom Handle, Counterweight Hook
  • Aluminum-Alloy Construction

The HA-77 Horizontal Arm from Sirui is a telescoping cross arm that can be combined with a tripod or stand to create a miniature camera boom. Its total 30.3" of length is provided by a two-section tube that rests on top of a tripod head, which features 360° of independent rotation. The tube and the head are connected by a fulcrum, which enables 90° of upwards or downwards tilt that can be locked into place. This allows an attached camera to be easily raised toward an elevated subject or over a scene. For subjects along the ground, the HA-77 Horizontal Arm can be used to obtain low angles while its user stands comfortably behind the camera.

This horizontal arm has a load capacity of 11 lb and is compatible with tripods or support systems that feature a 3/8"-16 mount. Thumbscrew locks are positioned on the HA-77 Horizontal Arm's tripod head, fulcrum, and the clamp that holds its telescoping, two-section tube on the fulcrum. By loosening each of these thumbscrew locks, the tripod head can be swiveled, the fulcrum tilted, and the two-section tube pushed toward or pulled away from the subject. Additionally, a twist lock on the two-section tube allows for rapid deployment of its second section.

To precisely position and extend the two-section tube, its first section features clearly visible hatch marks engraved at 0.5cm intervals from 0-30cm, the second section includes hatch marks along its length from 0-27cm that are also engraved at 0.5cm intervals, while the fulcrum's 90° upwards or downwards tilt can be set according to 10° intervals. For use as a miniature boom, the front end of the HA-77 Horizontal Arm on the two-section tube's second section includes a flat plate with a reversible mount that can accommodate a camera or tripod head with a 3/8"-16 or 1/4"-20 female accessory thread. At the rear end of the horizontal arm on the two-section tube's first section, a removable foam-padded handle with a ballast hook provides a secure and comfortable grip as well as the ability to counterbalance any items placed at the front of the horizontal arm.

Alternatively, the HA-77 Horizontal Arm can be used to adapt multiple devices to a single tripod or stand. By obtaining a second flat plate with a reversible mount from Sirui that can be substituted for the foam-padded handle, a camera or tripod head can be placed on both sides of the horizontal arm. With a ball head on both sides of the HA-77 Horizontal Arm, a configuration of two parallel cameras, or a single camera that is parallel to a different device can be created. When the HA-77 Horizontal Arm is used with its foam-padded handle, a camera that is placed toward the end of two-section tube's reversible mount can be positioned perpendicular to the tripod or stand which the horizontal arm is attached to. The camera can then be extended past the tripod or stand's legs, which is particularly useful for copy stand or macro photography of subjects directly below the camera lens.

  • Telescoping cross arm with 11 lb load capacity that can be combined with a tripod or stand to create a miniature camera boom
  • Compatible with tripods or support systems that feature a 3/8"-16 mount
  • 19.7 to 30.3" of length provided by a two-section tube, which rests on top of a tripod head featuring 360° of independent rotation
  • Two-section tube and the head are connected by a fulcrum, which enables 90° of upwards or downwards tilt that can be locked into place
  • Individual thumbscrew locks allow tripod head to be swiveled, the fulcrum tilted, and the two-section tube pushed toward or pulled away from the subject
  • Twist lock on the two-section tube allows for rapid deployment of its second section
  • For precise positioning, first section of the two-section tube features clearly visible hatch marks engraved at 0.5cm intervals from 0-30cm, the second section of the tube includes hatch marks along its length from 0-27cm that are also engraved at 0.5cm intervals, and the fulcrum's 90° upwards or downwards tilt can be set according to 10° intervals
  • Front end on the two-section tube's second section includes a flat plate with a reversible, side-facing mount that can accommodate a camera or tripod head with a 3/8"-16 or 1/4"-20 female accessory thread
  • Removable foam-padded handle with a ballast hook provides a secure and comfortable grip as well the ability to counterbalance any items placed at the front of the horizontal arm
  • Foam-padded handle can be substituted with a second, flat plate with a reversible mount from Sirui
  • With a separately-available flat plate with reversible mount, a configuration of two parallel cameras, or a single camera that is parallel to a different device can be created
  • When foam-padded handle is in use, two-section tube and a camera at side-facing mount can be extended past the tripod or stand's legs, useful for copy stand or macro photography of subjects below the camera lens
  • 3/8"-16 mount on foam-padded handle allows it to be unscrewed from two-section tube and screwed into the tripod head's accessory head for storage and transport
  • Measures 14.6 x 5.3" when configured and folded for storage and transport
  • Durable, aluminum-alloy construction
  • Drawstring pouch for storage and transport
  • Hex key to remove or install tripod head or two-section tube's flat plate
  • Two hex keys to tighten fulcrum retaining screw
  • Ballast hook can be removed from foam-padded handle to be used as a hex key to remove or install tripod head or two-section tube's flat plate
  • Tip of 3/8"-16 mount of foam-padded handle can be used as a hex key to remove or install tripod head or two-section tube's flat plate
In the Box
Sirui HA-77 Horizontal Arm
  • Pouch
  • Hex Key for Tripod Head and Telescoping Tube Plate Retaining Screws
  • 2 x Hex Key for Fulcrum Retaining Screw
  • Limited 6-Year Warranty
Load Capacity 11 lb / 5 kg
Female Connection Type One 3/8"-16 accessory thread
Male Connection Type Reversible 3/8"-16 or 1/4"-20 mount
Material of Construction Aluminum alloy
Dimensions Deployed: 19.7 x 7.9" to 30.3 x 7.9" (50 x 20.1 cm to 77 x 20.1 cm)
Folded: 14.6 x 5.3" (37.1 x 13.5 cm)
Weight 2.6 lb (1.2 kg)
Packaging Info
Package Weight 3.5 lb
Box Dimensions (LxWxH) 16.3 x 5.0 x 4.7"
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 15234756755

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4.7 ★★★★★
Based on 29 reviews
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R
Verified Purchase
Rebecca Olivas
Pawtucket, US
★★★★★ 5
Stop thinking about which 1, get these!
Size: 1 Camera
Should have got these along time ago. Procrastinating way too much. Great quality, wireless, long lasting battery thus far. Easy to install just about anywhere. Can be moved around. Great set I bought 2 of the covers front of the house and rear yard plus my doorbell. Security surveillance all around! Dont think twice you'll be more than satisfied and greatful.just probably upset you didnt get them sooner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
D
Verified Purchase
Deanna Thurmond
Bozeman, US
★★★★★ 5
Great security features.
Size: 1 Camera
Works great I just wish the battery last longer.Nightvision is great as well weather proof.Sticks up and is sturdy as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
N
Verified Purchase
nmd
Lexington, US
★★★★★ 5
Great Product
Size: 1 Camera
Great camera for outdoor security. The features on the app have been updated and work better than the Ring Doorbell. The camera has a great live picture, and the sound is very clear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
D
Verified Purchase
Dexter
Waukegan, US
★★★★★ 5
Quality Cameras
Size: 2 Cameras
Love these Cameras. Great clear quality and super easy to set up! If you are looking to add a camera or camera system, you can't beat the price and quality of these
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
G
Verified Purchase
GuitarRebel
Phoenix, US
★★★★★ 5
Read this if you're having connection or audio/video/notification difficulties ***UPDATED at end***
Before I start my revised review, let me state that there's been a lot of news lately about people hacking into Ring cameras, but this only happens when someone installs a new camera and doesn't update the default username and password (or has an extremely weak password which is easy for a hacker to guess). This is like leaving your front door open while on vacation. Your camera is sending and receiving signals over a wireless network. Anyone within range of the signal can potentially be a threat if you don't have good encryption (username and good password) set up on your camera. There's no logical reason for a Ring owner to not do this. Ring even stresses changing the default settings during the initial setup process. Bottom line, don't blame the car manufacturer if you leave the keys in your car and it gets stolen. ---------------------------------------------------------------------------------------------------------------------------------------- Recently, I wrote a rather scathing 1 star review about the problems I was having with my new Ring Stick Up Wireless Battery Cam. I'm no stranger to wireless cams, having 10 hooked up and running seamlessly on another network as I write this, but I was totally frustrated with the connection reliability, not only with my two upper end cellphones, but also on my Galaxy Tab and Amazon Show. More times than not, the software wouldn't connect with the camera but when it did, the video was choppy. Notifications were also hit and miss. I have a great wireless mesh router system throughout the house, so after doing all the troubleshooting I could think of, I assumed it was due to faulty hardware or software. I gave up and started the return process through Amazon. It was a new product after all and new products sometimes are really buggy. Plus, I read other negative reviews which seemed to justify my thoughts and actions. Then I got an email from a gentleman from Ring saying he read my review and asked if I'd be willing to let him help troubleshoot my issues with me. Although I had already started the return process, I was willing. It was refreshing to know Ring Customer Service was genuinely interested in troubleshooting possible defects in their newest product. Together, we isolated the issue within about 20 minutes. It turned out it wasn't the camera or software after all. Anyone having connection issues should do what he advised me to do. Open up the Ring app and click on the 3 little dots to the upper right of the camera screenshot, then select settings. From there go to Device Health and check the signal strength. Although I had a good mesh hub (inside) within 10 feet of my camera (mounted outside), my signal strength was RSSI -64. He stated that the signal was so weak it was on the cusp of what is needed for the camera to even minimally operate. This prompted me to reboot my wireless mesh system and reset/reconnect the camera. When it came back online, my signal strength went to -39, a vast improvement. A quick check of all of my devices showed the camera and software working flawlessly. Hat's off to Ring. Anyone who may be having connection or audio/video/notification difficulties, check your signal strength to the camera via the Ring software, even if your router is close by. You just might be surprised. ***UPDATE*** Camera (and software) is still working flawlessly on all devices. Ring has now updated their Windows 10 desktop app (which previously didn't work with the new wireless battery cams) and it works flawlessly as well. Observations. Notifications on my phone, Tab and Amazon devices (Show, Echo, Dot) are almost instantaneous. Alexa says "Someone is at your front door." Very cool. I bought an extra battery, but it looks like it'll be at least a few months before I need to swap it out, even with the intensive testing I've done on the Stick Up Cam. Battery life seems excellent. I have one zone blocked out and that seems to work fine as well. I also have it mounted a couple of feet above and to the left of my front door, tilting downward at an angle. Even though residential traffic is visible in the field of view, I've not gotten one trigger due to street activity. The motion sensor is triggered by anything coming into the bottom half of it's field of view. From the time someone triggers the motion sensor until the time I'm aware of it is 1-2 seconds. That's about as close to real time as you can get. It's not given me a false alarm even once. Telling my Amazon Show to "(Alexa), show front door cam" takes about 5 seconds to complete. I can also watch triggered video clips and get a live feed while away from home without any extra setup to my network. It's totally automatic. Because of the customer service I received from Ring and the fact the product is much better than I originally thought, I will be expanding my Ring family soon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2019

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